Sketchy LISP
An Introduction to Functional Programming in Scheme

Blurb:

Sketchy LISP presents an overview of the Scheme programming language
with strong emphasis on functional programming. Language elements
and programming techniques are explained by means of simple examples
which are used to form more complex programs.

The first chapter of the book introduces basic concepts such as
definitions, conditional evaluation, recursion, procedures, and
elementary data types.

While the second chapter continues this tour, it puts emphasis on
more complex programs by introducing problems of varying complexity
and then outlining the way to their solution step by step.

The third chapter takes up some lose ends and briefly introduces
continuations, one of the more advanced features of Scheme. It also
demonstrates how Scheme can be viewed as a formal system by
constructing a Y combinator.

New in the third edition:

The third edition adds a fourth chapter that illustrates what
Scheme looks like in the "real world" by means of a more advanced
and heavily commented example program.

The indentation style in the examples is more consistent now,
which is particularly important to beginners. In addition, a
Scheme style guide was added to the appendix.

Acknowledgements

Thanks to all the people who sent me mail with great ideas on
how to improve Sketchy LISP!

Where to get it

The full text of this edition can be viewed online. Paper copies
and inexpensive PDF files can be purchased at Lulu.com.

Online Edition:  http://www.t3x.org/sketchy/vol1/

Paper copies and PDF files:  http://www.lulu.com/content/213736/

Thank you for your interest, I hope you will enjoy the new edition!